ajlee3079 ajlee3079

18-10-2017
Mathematics

contestada

Find the 55th derivative of y = cos(3x).

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Kalahira Kalahira

29-10-2017

since the derivative of cos(ax) is -a sin(x) and the derivative of sin(ax) is a cos(ax), then the 55th derivative will be 3^(55) (-1)^(54/2)) (-1) sin(3x) or: 3^(55)*sin(3x)

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